package com.tanhua.dubbo.api;

import cn.hutool.core.collection.CollUtil;
import com.tanhua.model.enums.CommentType;
import com.tanhua.model.mongo.Comment;
import com.tanhua.model.mongo.Movement;
import com.tanhua.model.mongo.Video;
import com.tanhua.model.vo.PageResult;
import org.apache.dubbo.config.annotation.DubboService;
import org.bson.types.ObjectId;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Sort;
import org.springframework.data.mongodb.core.FindAndModifyOptions;
import org.springframework.data.mongodb.core.MongoTemplate;
import org.springframework.data.mongodb.core.query.Criteria;
import org.springframework.data.mongodb.core.query.Query;
import org.springframework.data.mongodb.core.query.Update;

import java.util.List;
import java.util.Queue;


@DubboService
public class CommentApiImpl implements CommentApi {

    @Autowired
    private MongoTemplate mongoTemplate;

    //发布评论，并获取评论数量（movement\video）
    public Integer save(Comment comment) {
        //1、查询动态
        Movement movement = mongoTemplate.findById(comment.getPublishId(), Movement.class);
        //2、向comment对象设置被评论人属性
        if (movement != null) {
            comment.setPublishUserId(movement.getUserId());
        }
        //1、查询动态
        Video video = mongoTemplate.findById(comment.getPublishId(), Video.class);
        //2、向comment对象设置被评论人属性
        if (video != null) {
            comment.setPublishUserId(video.getUserId());
        }
        //3、保存到数据库
        mongoTemplate.save(comment);
        //4、更新动态表中的对应字段
        Query query = Query.query(Criteria.where("id").is(comment.getPublishId()));
        Update update = new Update();
        if (comment.getCommentType() == CommentType.LIKE.getType()) {
            update.inc("likeCount", 1);
        } else if (comment.getCommentType() == CommentType.COMMENT.getType()) {
            update.inc("commentCount", 1);
        } else {
            update.inc("loveCount", 1);
        }
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);//获取更新后的最新数据
        Movement movement1 = mongoTemplate.findAndModify(query, update, options, Movement.class);
        if (movement1 != null) {
            //5、获取最新的评论数量，并返回
            return movement.statisCount(comment.getCommentType());
        }
        Video video1 = mongoTemplate.findAndModify(query, update, options, Video.class);
        if (video1 != null) {
            return video.statisCount(comment.getCommentType());
        }
        return null;
    }

    //分页查询
    public List<Comment> findComments(String movementId, CommentType commentType, Integer page, Integer pagesize) {
        //1、构造查询条件
        Query query = Query.query(Criteria.where("publishId").is(new ObjectId(movementId)).and("commentType")
                .is(commentType.getType()))
                .skip((page - 1) * pagesize)
                .limit(pagesize)
                .with(Sort.by(Sort.Order.desc("created")));
        //2、查询并返回
        return mongoTemplate.find(query, Comment.class);
    }

    //判断comment数据是否存在
    public Boolean hasComment(String movementId, Long userId, CommentType commentType) {
        Criteria criteria = Criteria.where("userId").is(userId)
                .and("publishId").is(new ObjectId(movementId))
                .and("commentType").is(commentType.getType());
        Query query = Query.query(criteria);
        return mongoTemplate.exists(query, Comment.class); //判断数据是否存在
    }

    //删除（movement\video）
    public Integer delete(Comment comment) {
        //1、删除Comment表数据
        Criteria criteria = Criteria.where("userId").is(comment.getUserId())
                .and("publishId").is(comment.getPublishId())
                .and("commentType").is(comment.getCommentType());
        Query query = Query.query(criteria);
        mongoTemplate.remove(query, Comment.class);
        //2、修改动态表中的总数量
        Query movementOrVideoQuery = Query.query(Criteria.where("id").is(comment.getPublishId()));
        Update update = new Update();
        if (comment.getCommentType() == CommentType.LIKE.getType()) {
            update.inc("likeCount", -1);
        } else if (comment.getCommentType() == CommentType.COMMENT.getType()) {
            update.inc("commentCount", -1);
        } else {
            update.inc("loveCount", -1);
        }
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);//获取更新后的最新数据
        Movement movement = mongoTemplate.findAndModify(movementOrVideoQuery, update, options, Movement.class);
        if (movement != null) {
            //5、获取最新的评论数量，并返回
            return movement.statisCount(comment.getCommentType());
        }
        Video video = mongoTemplate.findAndModify(movementOrVideoQuery, update, options, Video.class);
        if (video != null) {
            return video.statisCount(comment.getCommentType());
        }
        return null;
    }

    //判断comment表中是否存在video数据
    public Boolean hasVideoComment(String videoId, Long userId, CommentType commentType) {
        Criteria criteria = Criteria.where("userId").is(userId)
                .and("publishId").is(new ObjectId(videoId))
                .and("commentType").is(commentType.getType());
        Query query = Query.query(criteria);
        return mongoTemplate.exists(query, Comment.class); //判断数据是否存在
    }

    //视频评论列表--分页
    public List<Comment> videoComments(String videoId, CommentType commentType, Integer page, Integer pagesize) {
        //1、构造查询条件
        Query query = Query.query(Criteria.where("publishId").is(new ObjectId(videoId))
                .and("commentType").is(commentType.getType()))
                .skip((page - 1) * pagesize)
                .limit(pagesize)
                .with(Sort.by(Sort.Order.desc("created")));
        //2、查询并返回
        return mongoTemplate.find(query, Comment.class);
    }

    //视频：评论点赞
    public Integer updateLikeContent(String commentId, int commentType) {
        //1、查询评论
        Query query = Query.query(Criteria.where("id").is(new ObjectId(commentId))
                .and("commentType").is(commentType));
        Comment comment = mongoTemplate.findOne(query, Comment.class);
        if (comment == null) {
            return null;
        }
        Update update = new Update();
        if (comment.getCommentType() == commentType) {
            update.inc("likeCount", 1);
        }
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);//获取更新后的最新数据
        Comment modify = mongoTemplate.findAndModify(query, update, options, Comment.class);
        return modify.getLikeCount();
    }

    //视频：评论点赞-取消
    public Integer updatedisLikeContent(String commentId, int commentType) {
        //1、查询评论
        Query query = Query.query(Criteria.where("id").is(new ObjectId(commentId))
                .and("commentType").is(commentType));
        Comment comment = mongoTemplate.findOne(query, Comment.class);
        if (comment == null) {
            return null;
        }
        Update update = new Update();
        if (comment.getCommentType() == commentType) {
            update.inc("likeCount", -1);
        }
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);//获取更新后的最新数据
        Comment modify = mongoTemplate.findAndModify(query, update, options, Comment.class);
        return modify.getLikeCount();
    }

    //评论点赞
    @Override
    public Integer findCommentCount(String commentId) {
        Criteria criteria = Criteria.where("id").is(new ObjectId(commentId));
        Query query = Query.query(criteria);
        Comment comment1 = mongoTemplate.findOne(query, Comment.class);
        //更新评论表中的对应字段,+1
        Update update = new Update();
        update.inc("likeCount",1);
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);
        Comment modify = mongoTemplate.findAndModify(query, update, options, Comment.class);
        return modify.getLikeCount();
    }


    //评论取消点赞
    @Override
    public Integer findDislikeCount(String commentId) {
        Criteria criteria = Criteria.where("id").is(new ObjectId(commentId));
        Query query = Query.query(criteria);
        Comment comment1 = mongoTemplate.findOne(query, Comment.class);
        //更新表中的字段,-1
        Update update = new Update();
        update.inc("likeCount",-1);
        //设置更新参数
        FindAndModifyOptions options = new FindAndModifyOptions();
        options.returnNew(true);
        Comment modify = mongoTemplate.findAndModify(query, update, options, Comment.class);
        return modify.getLikeCount();
    }


    //查询当前用户发布的所有视频和动态的评论
        //查询当前用户发布的所有视频和动态的评论
    @Override
    public PageResult findAllCommnets(Integer page, Integer pagesize,Long publishUserId, CommentType comment) {
            Query query = Query.query(Criteria.where("publishUserId").is(publishUserId)
                    .and("commentType").is(comment.getType()));
            long count = mongoTemplate.count(query, Comment.class);
            query.skip((page-1) * pagesize).limit(pagesize).with(Sort.by(Sort.Order.desc("created")));

            List<Comment> comments = mongoTemplate.find(query, Comment.class);

            return new PageResult(page,pagesize,count,comments);
    }


    /**
     * 查询评论列表
     * @param movementId
     * @return
     */
    @Override
    public PageResult findById(Integer page, Integer pagesize, ObjectId movementId) {
        Criteria criteria = Criteria.where("publishId").is(movementId);
        Query query = Query.query(criteria);
        long count = mongoTemplate.count(query, Comment.class);
        query.skip((page-1)*pagesize).limit(pagesize)
                .with(Sort.by(Sort.Order.desc("created")));
        List<Comment> comments = mongoTemplate.find(query, Comment.class);
        return new PageResult(page,pagesize,count,comments);
    }
}
